Daikin Altherma 3 R F EHVZ04S18E 6V Series - Piping Diagram: Indoor Unit

16 | Technical data
Installer reference guide
227
ERGA04~08EAV3(A) + EHVZ04+08S18+23EA6V+9W
Daikin Altherma 3 R F
4P629093-1 – 2020.08
16.2 Piping diagram: Indoor unit
3D112187A
B1PW
M3S
M1S
B2PR
R3T
R8T
R2T
R1T
R5T
R4T
R7T
A
C
C
l m
m
a2
a1
c2
c1
f
g
e
h
k
k
i
j
n
o
j
d2
d1
B
f
C
b1
f
f
C
b2
f
M
M
X
X
k
p
q
r
A Water side B1PW Space heating water pressure
sensor
B Refrigerant side B2PR Refrigerant pressure sensor
C Field installed M1S 3-way valve (mixing valve for the
main/mixed zone)
a1 Space heating water IN
(additional/direct zone)
M3S 3-way valve (space heating/
domestic hot water)
a2 Space heating water OUT
(additional/direct zone)
R1T Thermistor (heat exchanger –
water OUT)
b1 Space heating water IN (main/
mixed zone)
R2T Thermistor (backup heater –
water OUT)
b2 Space heating water OUT (main/
mixed zone)
R3T Thermistor (liquid refrigerant)
c1 Domestic hot water: cold water
IN
R4T Thermistor (heat exchanger –
water IN)
c2 Domestic hot water: hot water
OUT
R5T, R8T Thermistor (tank)
d1 Gas refrigerant IN (heating
mode; condenser)
R7T Thermistor (main/mixed zone–
water OUT)
d2 Liquid refrigerant OUT (heating
mode; condenser)
Screw connection
e Plate heat exchanger Flare connection
f Shut-off valve for service (if
equipped)
Quick coupling